---
title: "Is Duo Core Authentication Service down? Duo Core Authentication Service status"
url: "https://www.openstatus.dev/status/duo/core-authentication-service-2"
description: "Live Duo Core Authentication Service status, uptime over the last 45 days and recent incidents, tracked by openstatus."
---

# Is Duo Core Authentication Service down?

**Answer:** No, Duo Core Authentication Service is not down. All Duo Core Authentication Service systems are operational.

- Status: operational
- Checked: 2026-11-07T07:10:14Z
- User reports in the last 15 minutes: 0
- Part of: [Duo](/status/duo.md) / DUO61
- Official status page: https://status.duo.com
- About: HTTPS (tcp/443) and LDAP(S) (tcp/389, tcp/636) endpoints used for authentication.

## Last 45 days

2 of 2 tracked days without issues.

## Incidents affecting Core Authentication Service

| Started | Incident | Impact | Duration |
| --- | --- | --- | --- |
| 2026-09-03 | [Duo - Partial Hardware Token Authentication Issues - United States](https://stspg.io/qh1zvjqv58d7) | minor | 1h 20m |

## Links

- HTML page: /status/duo/core-authentication-service-2
- Service: /status/duo.md